# What Causes Terminal Velocity?

Terminal velocity is the maximum velocity (speed) attainable by an object as it falls through a fluid (air is the most common example). It occurs when the sum of the drag force (Fd) and the buoyancy is equal to the downward force of gravity (FG) acting on the object.

## Is terminal velocity caused by friction?

The term terminal velocity is used to describe the falling motion that results from the balance between gravity and air resistance (friction). Without the atmosphere, objects would continue to accelerate to faster and faster speeds until striking the surface.

## What 3 things does terminal velocity depend on?

Terminal velocity is the point at which the drag force equals the force of gravity. Terminal velocity will depend on the mass, cross sectional area, and drag coefficient of the object as well as the density of the fluid through which the object is falling and gravitational accelleration.

## What forces are involved in terminal velocity?

Terminal Velocity. An object which is falling through the atmosphere is subjected to two external forces. One force is the gravitational force, expressed as the weight of the object. The other force is the air resistance, or drag of the object.

## What determines your terminal velocity?

There are two types of factors that affect the terminal velocity: Depending on an object — area, mass, and drag coefficient; and. Depending on the environment — density and gravitational acceleration.

## How far do you fall in 3 seconds?

The rock will fall at a distance of 44.145 m in 3 seconds.

## What controls terminal velocity?

As it turns out, your terminal velocity is determined by exactly two thingsyour weight, and the amount of surface area you expose to the ground. While a skydiver can't do anything about her weight mid-fall, she can control how much area she presents downward.

## What speed would a falling object be at 3 seconds?

-29.

There the frictional force is proportional to the velocity for small velocities. That proportionality breaks down when the velocity becomes larger. In particular, it breaks down (and the drag goes up more rapidly) when something called the Reynolds' number becomes large.

## How do you calculate the speed of a falling object?

The acceleration of gravity near the earth is g = -9.81 m/s^2. To find out something's speed (or velocity) after a certain amount of time, you just multiply the acceleration of gravity by the amount of time since it was let go of. So you get: velocity = -9.81 m/s^2 * time, or V = gt.

## How fast do you fall in 2 seconds?

Gravity will accelerate any object at a rate of 32 feet per second per second. But what do we do with that number? What it means is that if we fall for one second we'll reach a speed of 32 feet per second. After two seconds we reach 64 feet per second.